Superior vena cava
Vena cava superior
A short, wide vessel approximately 7 cm long, formed by the junction of the right and left brachiocephalic veins posterior to the first right costal cartilage. It descends through the superior mediastinum, receiving the azygos vein, and empties into the right atrium.
| 类型 | Vessel |
| 身体系统 | Cardiovascular |
| 身体区域 | Heart Region |
| 拉丁名称 | Vena cava superior |
| FMA ID | 4720 |
功能
Returns deoxygenated blood from the head, neck, upper limbs, and thorax to the right atrium of the heart. Formed by the confluence of the right and left brachiocephalic veins.
临床意义
Superior vena cava syndrome results from compression or obstruction (often by lung cancer or lymphoma), causing facial and upper limb swelling. Central venous catheters are placed via the subclavian or internal jugular veins into the SVC.
常见问题
What is the Superior vena cava?
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What body system is the Superior vena cava part of?
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相关结构
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